exp. with Foundry recently, and it's cool, but I'm a bit confused as to why testing in Solidity is preferred when it's highly likely interactions w/ your contract will need to use JS/TS anyway.

3P apps call your contract directly via frontend or they have a contract that calls your contract that itself uses a frontend

/bettik founder /outercorps stalwart | ex-binance, ex-celsiusX

I think depending on your contract size and complexity and specialisation. I can imagine for a very large codebase working only in solidity one might want foundry. Myself I am very happy with hardhat as I am full stack. But for solidity only Devs, I can imagine the draw.